Energy Policy

Lord Birt Excerpts

Monday 25th June 2018 Lords Chamber

[Lord Henley]

I correct the noble Lord on just one thing. He said that tidal power was predictable—and I agree with him that it is predictable—but it is also intermittent because, as he knows, tides go up and down and there are slack periods as well. The intermittency is variable, so it is predictably intermittent, which makes for complications—but it also leads on to the noble Lord’s point about storage.

Obviously, with all these sorts of renewables, storage becomes very important, and developments on that front will change over the coming years. The noble Lord asked us all to look 50 years in the future. First, most of us will not be around in 50 years—but we can all remember 50 years back, and we all know just how much things have changed over those past 50 years. The point that I am making is that it would be wrong for me to predict what might happen over the next 50 years.

I want to make it clear that we have not ruled out tidal power. As the noble Lord says, we have some of the best tides in the world. I am reminded of those lines that noble Lords will remember from “Lochinvar”:

“Love swells like the Solway, but ebbs like its tide”.


It comes in very fast in those areas and goes out very fast. The variation in the Bristol channel is as good as anything that you will get anywhere else in the world, except I think in the St Lawrence estuary.

Much can be done, and we should certainly look at those in future. I cannot say which might then turn out to be suitable. Some of the other tidal power projects being looked at here could offer electricity somewhat cheaper—but only somewhat—than the Swansea bay, because the Swansea bay one is relatively small. We should look at any project on its merits. But I think that the noble Lord, who is as diligent as I am about the view that we must preserve taxpayers’ and consumers’ money, would not want to go ahead with a project that was going to cost three times as much as electricity from, say, Hinkley Point.

[Lord Birt (CB)]

My Lords, the ministerial Statement makes a compelling economic case—at its heart, the notion that the unit cost of electricity from the Swansea barrage would be three times as expensive as not only Hinkley C but the current price of offshore wind. In the circumstances, would it not have made sense to publish the supporting financial analysis at the same time as this obviously controversial and difficult decision?

[Lord Henley]

My Lords, as I think I made clear to my noble friend Lady Finn, we are going to publish as much as possible of the financial detail to make it clear just how strong the case is.